Nurture groups are a form of provision for children with social, emotional, behavioural and learning difficulties. The study examines the interactions between children and staff--in particular, the frequency and effects of verbal and non-verbal praise--and discusses how this contributes to its effectiveness as a positive intervention instrument for all children. Results from structured observations confirmed that interactions in four nurture groups were positive and likely to enhance the self-esteem of pupils. Staff in all nurture groups used a higher frequency of specific verbal praise compared to non-verbal praise, despite results from children's responses to praise revealing that nearly a half of the children responded to non-verbal praise by continuing with appropriate behaviours. An interesting and unexpected finding revealed that as time passed the frequency of both verbal and non-verbal praise reduced. The study highlights how the frequency of certain behaviours such as non-verbal praise can impact on children's behaviour. (Contains 6 tables, 2 notes and 3 figures.)